New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The curved surface area of a cylinder is 462 cm²

    and its base area is 346.5 cm². What is the volume (in cm³) of the cylinder? (Use π = 22/7)
    A 4800 Correct Answer Incorrect Answer
    B 2425.5 Correct Answer Incorrect Answer
    C 4850 Correct Answer Incorrect Answer
    D 2400 Correct Answer Incorrect Answer

    Solution

    Curved Surface Area = 2π rh = 462 Area of base = π r2 = 346.5 => (22/7) r2 = 346.5 => r = 10.5 Now, => 2π rh = 462 => 2 × 22/7 × 10.5 × h = 462 => h = 7 Volume of the cylinder = π r2h = 22/7 × 10.5 × 10.5 × 7 = 2425.5 cm3.

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